Method of printing unique prints or individually assembled printed products on rotary printing machines

• US 20030041764A1
• Filed: 09/03/2002
• Published: 03/06/2003
• Est. Priority Date: 09/03/2001
• Status: Active Grant

• Current Assignee: Manroland AG (Allianz Se)
• Original Assignee: Man Roland Druckmaschinen AG (Allianz Se)
• Inventors: Schuster, Alfons, Schneider, Josef, Dauer, Horst
• Granted Patent: US 6,755,129 B2
• Time in Patent Office: Days
• US Class Current: 101/483
• CPC Class Codes: B41C 1/10 for lithographic printing; Master sheets for transferring a lithographic image to the forme chemical or electrical pretreatment B41N3/03neutralising or similar differentiation treatments of lithographic printing formes B41N3/08
• CPC Class Codes: B41M 1/06 Lithographic printing
• CPC Class Codes: B41M 3/008 Sequential or multiple printing, e.g. on previously printed background; Mirror printing; Recto-verso printing; using a combination of different printing techniques; Printing of patterns visible in reflection and by transparency; by superposing printed artifacts

Abstract

The image subject to be transferred is applied in preformatted form to at least two printing formes in the form of segment-like image data in a row and column arrangement, in such a way that a first portion of information from each segment of the image subject (information (a) with appropriate index features) is provided on a first printing forme, and a second portion of information from the corresponding segment of the image subject (information (b) with appropriate index features) is provided on a second printing forme. As a result of synchronous rolling of the printing-forme cylinders, the portions of information are assembled to form complete information (<a,b> with the respectively combined index features) for each segment of the image subject on the printed page. For each printing-forme cylinder revolution, the index features for each segment of the image subject (information <a,b>) are recombined step by step in the manner of a permutation, so that each printed segment constitutes a unique print.

Claims

1. A method of printing unique prints or individually assembled printed products on rotary printing machines, said method comprising

providing an image subject to be transferred to a printing material in the form of preformatted data, said data comprising a plurality of segments in a line and column format, each segment comprising a first portion and a second portion, each portion comprising an index feature,

providing said first portion of each said segment on a first printing forme cylinder in a line and column format,

providing said second portion of each said segment on a second printing forme cylinder in a line and column format,

synchronously rolling said first and second printing forme cylinders so that said first and second portions of data are transferred to the printing material and so that each first portion is assembled with a respective second portion to form a complete segment of data, and

for each revolution of said printing forme cylinders, recombining said index features of each said segment stepwise in the manner of a permutation so that said printing material is uniquely printed with each said revolution.

2. A method of printing unique prints as in claim 1 comprising

providing said first portions (a_ik) of data on said first printing forme cylinder in an A_(m,n) matrix arrangement with line numbering i=1, 2, . . . , m and column numbering k=1, 2, . . . , n,

providing said second portions (b_jk) of data on said second printing forme cylinder in a B_(m+1,n) matrix arrangement with line numbering j=1, 2, . . . , m+1 and column numbering k=1, 2, . . . , n, and

providing said first and second forme cylinders with different circumferences so that, during the transfer of data from said first and second forme cylinders to said printed material, during each revolution of the printing forme cylinders, in each segment the first portion (a_ik) and the second portion (b_jk) changed by at least one line number j is printed, until after m+1 revolutions, production is completed.

3. A method of printing unique prints as in claim 1 comprising

providing said first portions (a_ik) of data on said first printing forme cylinder in an A(m,n) matrix arrangement with line numbering i=1, 2, . . . , m and column numbering k=1, 2, . . . , n,

providing said second portions (b_jk) of data on said second printing forme cylinder in a B_(m,n) matrix arrangement with line numbering j=1, 2, . . . , m and column numbering k=1, 2, . . . , n,

providing said first and second forme cylinders with identical circumferences, and

after each revolution of the printing forme cylinders, rotating one of said cylinders with respect to the other one of said cylinders stepwise so that, during the transfer of data from said first and second forme cylinders to said printed material, during each revolution of the printing forme cylinders, in each segment the first portion (a_ik) and the second portion (b_ik) changed by at least one line number i is printed, until after m revolutions and m−

1 stepwise rotations, production is completed.

4. A method of printing unique prints as in claim 1 wherein each of said portions further comprises a barcode, each of said segments comprising a barcode from each of said portions printed over the index feature of the other of said portions.

5. A method of printing unique prints as in claim 1 wherein each of said portions further comprises a number combination, each of said segments comprising a number combination from each of said portions printed over the index feature of the other of said portions in order to produce individual labels.

6. A method of printing unique prints as in claim 1 wherein each of said portions further comprises one of an electrically conductive and an insulating pattern, each of said segments comprising one of an electrically conductive and an insulating pattern from each of said portions printed over the index feature of the other of said portions in order to produce individual circuits.

7. A method of printing unique prints as in claim 1 wherein each of said portions further comprises one of individual polymer conductors, insulators, and semiconductors, each of said segments comprising one of individual polymer conductors, insulators, and semiconductors from each of said portions printed over the index feature of the other of said portions in order to produce individual polymer electronics.

8. A method of printing unique prints as in claim 1 further comprising at least a third printing forme cylinder, each segment comprising at least a third portion of data provided on a respective said at least a third printing forme cylinder, whereby the level of individualization of individual segments is increased.